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An event-related brain potential correlate of visual short-term memory

Klaver P., , Talsma D., , Wijers A.A., , Heinze H.-J., and Mulder G., (1999) An event-related brain potential correlate of visual short-term memory NeuroReport, 10 (10). pp. 2001-2005.

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Abstract

Event-related potentials (ERPs) were recorded as 12 subjects performed a delayed matching to sample task. We presented two bilateral abstract shapes and cued spatially which had to be memorized for a subsequent matching task: left, right or both. During memorization a posterior slow negative ERP wave developed over the hemisphere contralateral to the memorized shape. This effect was similar in high and low memory load trials while the memory figures were visible (for 1000 ms). As the figures disappeared (for 1500 ms), the effect persisted only in the low memory load conditions. We suggest that the contralateral negativity reflects a visual short-term memory process and that capacity limitation in the high memory load condition causes this process to collapse.

Item Type: Article
Authors :
NameEmailORCID
Klaver P., UNSPECIFIEDUNSPECIFIED
Talsma D., UNSPECIFIEDUNSPECIFIED
Wijers A.A., UNSPECIFIEDUNSPECIFIED
Heinze H.-J., UNSPECIFIEDUNSPECIFIED
Mulder G., UNSPECIFIEDUNSPECIFIED
Date : 1999
Uncontrolled Keywords : Event-related potential, Memory load, Spatial cueing, Visual memory
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:41
Last Modified : 17 May 2017 10:41
URI: http://epubs.surrey.ac.uk/id/eprint/828802

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